ReusableAnalyzerBase.TokenStreamComponents
built from a StandardTokenizer filtered with
StandardFilter, LowerCaseFilter, StopFilter
, and CzechStemFilter (only if version is >= LUCENE_31). If
a version is >= LUCENE_31 and a stem exclusion set is provided via
CzechAnalyzer(Version, Set, Set) a
KeywordMarkerFilter is added before
CzechStemFilter.